Sankashti Chaturti, or Ganesh Sankashta Chaturthi Vrata, is an auspicious day dedicated to Lord Ganesha in a Hindu lunar month. Below are the dates of Sankashti Chaturti in 2015. Ganesh Sankashta Chaturthi Vrata falls on the 4th day of the Krishna Paksha (waning phase of moon) of lunar fortnight or on the fourth day after full moon or Purnima. Ganesha devotees observe a fast (fasting – upvaas) on Sankashta Chaturthi Vrata days.

Sankashti Chaturti days in 2015 is based on Indian Standard Time (IST).